Cheap do-it-yourself fix
I haven't seen that problem on my 2005 DL650 yet, but have had similar problems with other hardware on vehicles/bicycles. The solution I came up with (partially since I already had the stuff in my garage) was to use Brownell's oven-baked teflon gun finish. It is a spray on coating that you then bake in your oven to cure. I have used it both on wear areas of firearms and on hardware. I like this option since I can black-out the hardware and preparation only entails cleaning and roughening the part (just protect the threads from over spray). Unfortunately, this only addresses the exposed heads.
"This above all: to thine own self be true". - (Hamlet, Act I, Scene III).
'05 DL650 - Textured Flat Black
Rifle Screen and KTM mirrors
Bill Mayer seat
PowerPegs (lot of grinding to install)
+1" rear link and ProTaper ATV Hi bars
SW-Motech guards/crash plate
GI Pro w/ATRE
'97 BMW F650 (gone)